(1) Historical review of earthquake damage in timber construction, earthquake resistance diagnosis, and new technologies.
(2) The types and structure formats of timber construction. Material types and its characteristics, and how to can calculate wall quantity and eccentricity.
(3) The positioning, design methods, and implementation methods of PC construction in a concrete system structure, and to calculate cross-sectional for simple PC structures.
Outline:
The first half of the semester (Shojo 8 weeks) covers the basic knowledge relating to materials and timber construction. The latter half of the second semester (Ichizawa 7 weeks) includes the fundamental thinking, design methods, and implementation methods of pre-stressed concrete structures (PC structure) applied to reinforced concrete structures, with field trips and visit construction sites. From the 9th week, the instructor ( Ichizawa) is in charge of the structural design of the PC structure in a company, and making use of their experiences will inform the students in the form of lectures on the latest the structural design methods.
Style:
The course is conducted with lectures and exercises and uses handouts and slides. Assignments will be requested as appropriate. It is an omnibus course, and Shojo will be in charge until the eighth week, and Ichizawa will be in charge after the ninth week.
Notice:
The course requires fundamental knowledge in architectural building dynamics, reinforced concrete structures, and steel structures from year 4th and below, the students should sufficiently revise these topics. Students attendance is required, and only a maximum of 5 absences is excused.
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Theme |
Goals |
| 2nd Semester |
| 3rd Quarter |
| 1st |
Timber structures earthquake damages and meaning of utilizing timber structures
Describes timber structures past earthquake damage. The significance of utilizing timber structure. Problems of the changes in Building Standards Law for timber structure. |
To understand earthquake damage in timber construction and the significance of utilizing timber structure.
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| 2nd |
Different types and characteristics of Timber Structures
There are several types of timber structures (timber framework method, Balloon Framing, etc.) Lecture on timber structure types and their characteristics. |
To understand timber structure types and their characteristics.
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| 3rd |
Timber Structure Materials
Lecture on the different materials used in timber structure and the main characteristic of each material. |
To understand timber structure materials and their characteristic.
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| 4th |
Timber structure planning and structural design method
Timber structures distribution of load and the function of each structural element. Essential points of vertical load and horizontal load to consider when designing a timber structure. |
To understand the flow of force on a wood structure, and the points to consider in the design of the structure.
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| 5th |
Calculation of Wall amount
Method of calculating the wall amount most used in the design of a single-story and two-story timber structure house. |
To understand the preconditions of a wall volume calculation and to calculate the wall volume.
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| 6th |
Eccentricity calculation
How to calculate the eccentricity generated by the balanced disposition of structural walls, 4 division method of simplified eccentricity calculation. |
To calculate eccentricity.
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| 7th |
Present and future of timber structures
Current situation and the prospects of timber structure, challenges such as earthquake-resistant diagnosis of a timber structure. |
To understand the current situation of timber structures and to form an opinion about the future of timber structures.
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| 8th |
Mid-term Exam |
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| 4th Quarter |
| 9th |
History of Pre-stress concrete (PC) structure and introduce of PC structural buildings
History and the use of the PC structure. The latest design example of PC buildings presented with slides. |
To understand the PC structure history and be able to explain examples of PC structures.
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| 10th |
Principles, characteristics of PC structure and tensioning method of pre-stress force
Basic principles of PC structure. The merit of PC structure and how to put concrete into pre-stress. |
To understand the basic principles of PC structure.
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| 11th |
About kinds, characteristics, fixation method of steel materials used for PC structure
The types and material properties of steel materials (PC steel materials) used in PC structure. The fixing process and the prestressing force. |
To understand the type, characteristics and fixing method of steel materials used for PC structure.
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| 12th |
The allowable stress level of concrete and the cross-sectional stress level generated. Types of concrete used in PC structures, and the allowable stress level applied to the design and the actual cross-sectional stress level. |
To understand the allowable stress level of concrete and the actual cross-sectional stress level.
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| 13th |
Structural design exercise of PC elements
To conduct structural design exercises for PC elemnts.
To understand the basic structural design of PC structures.
Describe the flow of a structural design of a simple PC member. |
To understand the basic steps of structural design of a PC structure, and design simple PC elements.
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| 14th |
Relationship between PC structure / PRC structure / RC structure-and indeterminate secondary stress
To compare and understand the structural features of the PC structure/ PRC structure/ RC structure. The stress peculiar to the PC structure generated when the prestressing force is introduced to the statically indeterminate structure. |
To understand the static secondary stress inherent to the PC structure. TO compare and understand the structural features of the PC structure/ PRC structure/ RC structure.
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| 15th |
Prestress Loss and Effectiveness Rate
To understand why as time passes the prestressing force introduced into concrete diminishes. To know how to apply the loss of prestressing force during structural design. |
Prestress Loss and Effectiveness Rate
To understand the loss of the prestressing force and the effectiveness rate.
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| 16th |
End-term Exam |
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